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From: Joel Sherrill <joel@sourceware.org>
To: newlib-cvs@sourceware.org
Subject: [newlib-cygwin] newlib/doc/makedoc.c: if realloc() fails,
 exit with an error message.
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https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=90a72f27d5f724b496525b54a5d9f99cdcecbb9c

commit 90a72f27d5f724b496525b54a5d9f99cdcecbb9c
Author: Joel Sherrill <joel@rtems.org>
Date:   Thu Jun 17 16:48:47 2021 -0500

    newlib/doc/makedoc.c: if realloc() fails, exit with an error message.

Diff:
---
 newlib/doc/makedoc.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/newlib/doc/makedoc.c b/newlib/doc/makedoc.c
index 966349c51..81aa6f941 100644
--- a/newlib/doc/makedoc.c
+++ b/newlib/doc/makedoc.c
@@ -135,6 +135,11 @@ catchar (string_type *buffer, char ch)
   {
     buffer->size *=2;
     buffer->ptr = realloc(buffer->ptr, buffer->size);
+    if (!buffer->ptr)
+    {
+      fprintf(stderr,"Can't allocate memory\n");
+      exit(1);
+    }
   }
 
   buffer->ptr[buffer->write_idx ++ ] = ch;